:root {
  --ink: #1c2a24;
  --paper: #f6f5f0;
  --line: #d8d6cc;
  --accent: #3c5a45;
  --accent-soft: #e7ede8;
  --error: #9a3324;
  --error-soft: #f8e9e6;
  --radius: 4px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 3rem 1.25rem;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

main { max-width: 30rem; margin: 0 auto; }

h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.85rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 0.4rem;
}

p.intro {
  margin: 0 0 2rem;
  color: #4c5a53;
  max-width: 34ch;
}

form {
  border-top: 1px solid var(--line);
  padding-top: 1.75rem;
}

.field { margin-bottom: 1.5rem; }

label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--ink);
}

input,
textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  font-size: 1rem;
  font-family: inherit;
  color: var(--ink);
}

textarea { min-height: 6rem; resize: vertical; }

input:focus,
textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

input[aria-invalid="true"],
textarea[aria-invalid="true"] { border-color: var(--error); }

.error-message {
  display: block;
  min-height: 1.1rem;
  margin-top: 0.35rem;
  font-size: 0.85rem;
  color: var(--error);
}

button {
  appearance: none;
  border: none;
  background: var(--accent);
  color: #fff;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
}

button:hover { background: #2e4636; }
button:disabled { background: #93a89c; cursor: wait; }

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

#form-status {
  margin-top: 1.25rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  display: none;
}

#form-status.visible { display: block; }

#form-status.success {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid #c3d3c8;
}

#form-status.failure {
  background: var(--error-soft);
  color: var(--error);
  border: 1px solid #e3c3bc;
}

#form-status blockquote {
  margin: 0.5rem 0 0;
  padding-left: 0.75rem;
  border-left: 2px solid currentColor;
  font-style: italic;
}

@media (prefers-reduced-motion: no-preference) {
  #form-status.visible { animation: settle 0.2s ease-out; }
}

@keyframes settle {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}